Snap-hook.



11a. SGHARTOW.

SNAP HOOK. APPLICATION EILBD JANA, 1909.

Patented Jan,25,1910.

FFICE.

FRANK E. SCHARTOW, OF RACINE, WISCONSIN, ASSIGNOR TO BARTON MANUFACTUR-ING COMPANY, OF RACINE, WISCONSIN, A CORPORATION OF WISCONSIN.

SNAP-HOOK.

To all whom it may concern:

Be itknown that I, FRANK E. SoHARTow, a citizen of the United States,residing at Racine, in the county of Racine and State of Wisconsin, haveinvented certain new and useful Improvements in Snap Hooks, of which thefollowing is a specification.

This invention relates to certain new and useful improvements insnap-hooks of the type used in connection with harness for fastening twoparts together, and more particularly for detachably connectingbreast-chains to the hames or trace-chains to other parts; and itconsists in certain peculiarities of the construction, novelarrangement, and operation of the various parts thereof, will behereinafter more fully set forth and specifically claimed.

The principal object of the invention is to provide a snap-hook of theabove-named general character which shall be simple and inexpensive inconstruction, strong, durable and effective in operation, and so madethat its members when engaging the links of chains, or other parts to beunited, will be locked in their closed position, thus pre ventingaccidental detachment or unfa-stening.

Another object of the invention is to provide a snap-hook of suchconstruction that it may be easily and quickly attached to and readilyremoved from the chains or parts to be united thereby.

Other objects and advantages of the invention will be disclosed in thesub'joined description and explanation.

In order to enable others skilled in the art to which my inventionpertains, to make and use the same, I will now proceed to describe it,referring to the accompanying drawing, in which Figure 1 is a view inside elevation of a snaphook embodying the invention, show ing one endthereof in engagement with a link of a chain or ring and illustratingthe parts in their normal position; Fig. 2 is a similar view showing themembers of the hook in position to permit the hook to engage or receiveat each of its ends a link or ring on the chains or parts to be united;Fig. 3 is a fragmental View in elevation of the reverse side of the bookfrom that shown in Figs. 1 and 2, illustrating the parts in their normalpositions; Fig. 4C is a cross-sectional view taken on line 4""4: of Fig.3 looking in Specification of Letters Patent.

Application filed January 4, 190B.

Patented Jan. 25, 1910.

Serial No. 470,691.

the direction indicated by the arrows, showing the manner of pivotallyconnecting the members of the hook as well as the way of nesting thespring which actuates one of said members; and Fig. 5 is a view partlyin section and partly in elevation taken on line 55 of Fig. 1 looking inthe direction indicated by the arrows.

Like numerals of reference, refer to eorrespending parts throughout thedifferent views of the drawlng.

preferably provided in its free end with a recess 14 to receive theother arm on the other memben As is clearly shown in Figs. 1, 2 and 3 ofthe drawing the outer extremity of the hooked portion 13 is providedwith a lug 15 while the inner extremity of said portion is formed with arecess 16 to receive a link or ring 17 of a chain or other part. Betweenthe recess 16 and the free end of the hooked part 18 is provided anotherrecess 18 which is preferably produced by forming the hooked portion 13with an outward bend as is clearly shown, and said last-named recess isfor the purpose of receiving the link or ring 17 when it is desired toseparate the members of the hook as shown in Fig. 2 of the drawing. Themain member or body 10 is enlarged at 10 at about its middle, and saidenlarged portion as well as the'major part of the hooked portion 13 ofsaid mem' her is flattened on its surface adjacent to the other orlooking member 19 of the hook which latter member is provided with anapertured enlarged portion 20 pivotally connected by means of a rivet 21to the enlarged portion 10 of the body or main member. Extended inopposite directions and from opposite edges or sides of the enlargedportion 20 of the member 19 are arms 22 and 23 which, when in theirnormal positions, will engage or approach the free ends or recessedportions 12 and 14 of the hooked portions 11 and 13, respectively, ofthe main member.

As is clearly shown in Figs. 2 and 4: of the drawing the enlargedportion of the member 19, as well as the major part of said member, isflattened on its surface adjacent to the main member so that when theparts are closed as shown in Figs. 1 and 3 they will lie closelytogether. The member 19 is pro vided at its free end with a hookedportion 24 which has on its outer portion a recess 25 to engage the lug15 in the outer extremity of the hooked portion 13 of the main member.The hooked portion 24 is provided on its inner surface with a recess 26to register with the recess 16 of the hooked portion 13 when the membersare in their normal positions. The free end of the hooked portion 24 ofthe member 19 is provided with a laterally extended foot 27 to restagainst an enlargement 28 on the hooked portion 13 of the main member,as is clearly shown in Fig. 3 of the drawing.

By reference to Figs. 4 and 5 it will be seen that the enlarged portionv10 of the main member 10 is provided on its surface adjacent to themember 19 with a hollow sleeve 29 to receive the pivot-pin or rivet 21,

one end of which is preferably countersunk in the outer surface of themain member. The enlarged portionlOtof the main member 10 is provided onits inner surface around the sleeve 29 with acdepression 30 to receive aportion of a spring 31 which is coiled around said sleeve and engageswith one of its ends the member 10 and with its other end the arm 22 onthe other member 19 of the hook, which latter member is also provided onits inner surface with a recess 32 to receive a portion of the spring31, as is clearly shown in Fig. 4 of the drawing.

From the foregoing and by reference to the drawing it will be readilyunderstood and clearly seen that the spring 31 acting on the members 10and 19 will normally hold the arms 22 and 23 of the latter member inengagement with or close to the free ends of the hooked portions 11 and13, respectively, of the first-named member, when by pressing on the arm22 the member 19 will be caused to assume about the position shown inFig. 2 of the drawing, thus permitting rings or links to be passedbetween the arms 22 and 23 and the free ends of the hooked portionslland 13, when by releasing the pressure on the arm 22 it is evident thatthe member 19 will assume its normal position as shown in Figs. 1 and 3,and as long as the link 17 is held in the recess 16 of the hookedportion 13 the members will be securely locked together, but if it isdesired to remove the links or rings from the hooked portions 1.1 and 13this may be easily accomplished by moving the link from the recess 16into the link 18, when it is apparent that the member 19 may be againturned to the position shown in Fig. 2 of the 'drawing, thus opening thehooked portions of the device.

It is manifest that by providing the hooked portion 2 1 of the member 19with the recess 25 to receive the lug 15 of the hooked portion 13 thestrain on the pivot of the members will be lessened or removed.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters-Patent, is

A snap-hook consisting of a main member having an oppositely disposedhooked por tion at each of its ends to engage links or rings of parts tobe secured together by the hook, one of said hooked portions having alug on its outer end and a recess on its inner surface, the latter toreceive one of said links or rings, and a spring-actuated locking-memberpivotally secured to the main member between the ends thereof and havingan oppositely disposed arm on each side of its pivot to approach orengage the free ends of said hooked portions and also provided with ahooked portion at one of its ends to register with one of the hookedportions on the main member, said hooked portion of the locking-memberhaving a recess in the outer portion of its extremity to ceive theaforesaid lug and a recess on the inner portion thereof to register withthe recess on the inner surface of one of the hooked. portions on themain member.

FRANK E. SCI-IAR'IOlV.

Witnesses J NO. WV. KNIGHT, A. L. Annnnson.

